I do hope you don't want to go to a nightclub if you have one day in Oslo :) besides Sunday is a bad day for nightclubbing anyway. Depends on what you are interested in, but the Vigeland Park is a must. Lots of statues made by Gustav Vigeland, really nice place. And maybe the Holmenkollen skijump? Nice view from there, you can see the whole city from there.
hi first welcome to oslo... next u can go alot of places like oslo beachs if the weather become better and clubs and historical places and its better to u to go oslo tourism guide u can get them some help and alot of things that makes u exited......and i hope i give u some help.....velkomen to oslo..